Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I ended up writing a script (I'm trying to teach myself the finer points of bash scripting, so that's why you don't see something like Perl here). It's not exactly a simple affair, but it does most of what I need. It uses Kyle's suggestion for looking up individual users' crontabs, but also deals with <code>/etc/crontab</code> (including the scripts launched by <code>run-parts</code> in <code>/etc/cron.hourly</code>, <code>/etc/cron.daily</code>, etc.) and the jobs in the <code>/etc/cron.d</code> directory. It takes all of those and merges them into a display something like the following:</p> <pre><code>mi h d m w user command 09,39 * * * * root [ -d /var/lib/php5 ] &amp;&amp; find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm 47 */8 * * * root rsync -axE --delete --ignore-errors / /mirror/ &gt;/dev/null 17 1 * * * root /etc/cron.daily/apt 17 1 * * * root /etc/cron.daily/aptitude 17 1 * * * root /etc/cron.daily/find 17 1 * * * root /etc/cron.daily/logrotate 17 1 * * * root /etc/cron.daily/man-db 17 1 * * * root /etc/cron.daily/ntp 17 1 * * * root /etc/cron.daily/standard 17 1 * * * root /etc/cron.daily/sysklogd 27 2 * * 7 root /etc/cron.weekly/man-db 27 2 * * 7 root /etc/cron.weekly/sysklogd 13 3 * * * archiver /usr/local/bin/offsite-backup 2&gt;&amp;1 32 3 1 * * root /etc/cron.monthly/standard 36 4 * * * yukon /home/yukon/bin/do-daily-stuff 5 5 * * * archiver /usr/local/bin/update-logs &gt;/dev/null </code></pre> <p>Note that it shows the user, and more-or-less sorts by hour and minute so that I can see the daily schedule.</p> <p>So far, I've tested it on Ubuntu, Debian, and Red Hat AS.</p> <pre class="lang-sh prettyprint-override"><code>#!/bin/bash # System-wide crontab file and cron job directory. Change these for your system. CRONTAB='/etc/crontab' CRONDIR='/etc/cron.d' # Single tab character. Annoyingly necessary. tab=$(echo -en "\t") # Given a stream of crontab lines, exclude non-cron job lines, replace # whitespace characters with a single space, and remove any spaces from the # beginning of each line. function clean_cron_lines() { while read line ; do echo "${line}" | egrep --invert-match '^($|\s*#|\s*[[:alnum:]_]+=)' | sed --regexp-extended "s/\s+/ /g" | sed --regexp-extended "s/^ //" done; } # Given a stream of cleaned crontab lines, echo any that don't include the # run-parts command, and for those that do, show each job file in the run-parts # directory as if it were scheduled explicitly. function lookup_run_parts() { while read line ; do match=$(echo "${line}" | egrep -o 'run-parts (-{1,2}\S+ )*\S+') if [[ -z "${match}" ]] ; then echo "${line}" else cron_fields=$(echo "${line}" | cut -f1-6 -d' ') cron_job_dir=$(echo "${match}" | awk '{print $NF}') if [[ -d "${cron_job_dir}" ]] ; then for cron_job_file in "${cron_job_dir}"/* ; do # */ &lt;not a comment&gt; [[ -f "${cron_job_file}" ]] &amp;&amp; echo "${cron_fields} ${cron_job_file}" done fi fi done; } # Temporary file for crontab lines. temp=$(mktemp) || exit 1 # Add all of the jobs from the system-wide crontab file. cat "${CRONTAB}" | clean_cron_lines | lookup_run_parts &gt;"${temp}" # Add all of the jobs from the system-wide cron directory. cat "${CRONDIR}"/* | clean_cron_lines &gt;&gt;"${temp}" # */ &lt;not a comment&gt; # Add each user's crontab (if it exists). Insert the user's name between the # five time fields and the command. while read user ; do crontab -l -u "${user}" 2&gt;/dev/null | clean_cron_lines | sed --regexp-extended "s/^((\S+ +){5})(.+)$/\1${user} \3/" &gt;&gt;"${temp}" done &lt; &lt;(cut --fields=1 --delimiter=: /etc/passwd) # Output the collected crontab lines. Replace the single spaces between the # fields with tab characters, sort the lines by hour and minute, insert the # header line, and format the results as a table. cat "${temp}" | sed --regexp-extended "s/^(\S+) +(\S+) +(\S+) +(\S+) +(\S+) +(\S+) +(.*)$/\1\t\2\t\3\t\4\t\5\t\6\t\7/" | sort --numeric-sort --field-separator="${tab}" --key=2,1 | sed "1i\mi\th\td\tm\tw\tuser\tcommand" | column -s"${tab}" -t rm --force "${temp}" </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow do I list all cron jobs for all users?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USyukondude
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHow do I list all cron jobs for all users?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. CONothing, but it didn't do anything about the system cron jobs in /etc/crontab and /etc/cron.d/. Dealing with those, and formatting everything at the end, is what my script does.
      singulars
      1. PO
      1. USyukondude
    2. COyukondude - you should consider putting this up on github, even just as a gist.
      singulars
      1. PO
      1. USKyle Burton
    3. COTried to copy paste and run it, but it fails:showcrons.sh: line 59: syntax error near unexpected token `<' showcrons.sh: line 59: `done < <(cut --fields=1 --delimiter=: /etc/passwd)'
      singulars
      1. PO
      1. USFraggle
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload